?????? ?????? ?????? ?????? ???? ???????????????? ?????????? ????? ??? ?????? ??? ????????? ?????? ?????? ??????? ??????? ?? ??? ??? ???????? 10 ?? ??????? ??? ??????? ??? ??? ????????? ?????? ???????? ?? ?????? ?????? ??? ??? ??? ???????????? {?????????????????. {??????????? ??????? ??? ???? ????????? ?????????? ?? ?????????????????? ?